Nioxin Scalp + Hair Thickening System 2 Conditioner — 10.1 fl oz for Natural/Untreated Hair, Niacinamide & Biotin, Lightweight Den

Nioxin System 2 Scalp Therapy Conditioner is a lightweight, density-enhancing conditioner formulated to strengthen natural, untreated hair with progressed thinning while helping maintain scalp moisture balance.

This professional-grade conditioner is the second step in Nioxin’s three-part regimen created for natural or untreated hair showing signs of thinning. It uses BioAMP technology plus ingredients like niacinamide and biotin to support hair resilience, detangle strands, and leave hair with a fuller-looking finish. Designed for daily use after cleansing, the formula is lightweight so it won’t weigh hair down while helping to fortify the hair fiber and improve manageability.

How does this conditioner support hair that’s thinning?

The conditioner focuses on strengthening existing hair and improving the look of density rather than altering hair growth cycles. It reinforces weakened strands to reduce breakage and smoothes the cuticle to improve shine and manageability. Over consistent use with the System 2 cleanser and treatment, users report a fuller-looking appearance and improved hair texture.

• BioAMP technology fortifies hair structure for resilience.
• Niacinamide helps maintain scalp comfort and surface hydration.
• Biotin supports thicker-looking hair when used regularly.
• Lightweight formula avoids weighing hair down.

What is the best way to use Nioxin System 2 Conditioner in my routine?

Use it as the second step after shampooing with the matching System 2 Cleanser. Apply to the scalp and work through the hair, leave on for 1–3 minutes, then rinse thoroughly. For optimal results, follow with the Nioxin Scalp and Hair Treatment and use the full three-step system daily.

• Step 1: Cleanse with System 2 Cleanser Shampoo to remove buildup.
• Step 2: Distribute conditioner onto scalp and lengths, leave 1–3 minutes.
• Step 3: Rinse and follow with the Scalp & Hair Treatment.
• Use daily as part of a consistent thinning-hair care regimen.

Which hair types and concerns is System 2 designed for?

System 2 is made specifically for natural, untreated hair with progressed thinning—hair that has not been chemically altered and shows reduced density. It’s formulated to address the needs of finer, fragile strands that require strengthening and moisture balance without heaviness. If hair has been chemically treated or colored, one of the other Nioxin systems may be a better match.

• Designed for natural/untreated hair with progressed thinning.
• Best for fine to medium textures that need resilience and fullness.
• Not formulated for chemically treated or color-processed hair types.
• Suitable for daily use to support visible improvement in fullness.

What results can I expect and when might I see them?

Visible improvement in the appearance of thickness and fullness is typically reported after consistent use of the three-step System 2 protocol. While individual timelines vary, clinical data and user feedback indicate measurable changes in hair fullness and thickness with continued daily application. The conditioner specifically helps reduce breakage and improve manageability, contributing to a healthier-looking head of hair.

• Users report fuller-looking hair with regular system use.
• Helps reduce breakage by strengthening the hair fiber.
• Improves detangling and surface smoothness for better styling.
• Complementary use with System 2 shampoo and treatment yields best outcome.

Who is this for: Nioxin System 2 Scalp Therapy Conditioner is intended for people with natural, untreated hair experiencing progressed thinning who want a lightweight, professional conditioner that strengthens strands, improves manageability, and contributes to a fuller-looking appearance. It’s ideal for daily use as part of the complete Nioxin three-step regimen and for anyone seeking salon-quality thinning-hair care backed by over two decades of brand expertise.

Ingredients

Aqua, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Stearyl Alcohol, Quaternium-18, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Hydroxypropyl Guar, Glyceryl Stearate, Hydroxyethylcellulose, Oleyl Alcohol, Methylparaben, Propylparaben, Polysorbate 60,Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, Bis-Aminopropyl Dimethicone, EDTA, Propylene Glycol, Citric Acid, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Niacinamide, Panthenol, Tocopheryl Acetate, Citrus Paradisi Peel Extract, Humulus Lupulus Flower Extract, Urtica Dioica Leaf Extract, Faex Extract, Acer Saccharum Extract, Citrus Limon Peel Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract, Citrus Aurantium Dulcis Fruit Extract, CI 42090, Potassium Sorbate, Sodium Benzoate